110, the pottery firing begins

Seaside!

Zhao Yunxiang stood on the seashore, the night was dark, there was not a trace of light on the sea, and the sea water was infected with a terrifying aura under the dark night.

The sea was dark and deep, like a terrible purgatory that consumed everything.

Pick up a handful of cool seawater and rinse off the slimy dirt on your body, which contains a lot of salt and alkali, and you can wash away the oil attached to your body without deliberately rubbing it.

I washed the attachment on my body a little, although the sea water is very cold, and when it dries, it will turn into a little salt on my body, but it is better than slimy.

The night was dark, I don't know the time, back to the shelter, Zhao Yunxiang smoked a cigarette on his mobile phone, which had already been soaked by seawater and still couldn't be turned on.

The phone was soaked in water for too long, and at first he soaked in the water for several hours, and the phone in his pocket could not be kept at all.

"What are you doing?" Han Qianluo walked over with a pot of berries, and the beautiful teacher just sat beside Zhao Yunxiang, staring at the verdant shelter.

The sea breeze is gentle, and the wall made of bamboo is rustled by the sea breeze, and there is an unusually elegant bamboo fragrance in the air.

"I wondered if my phone was completely broken. Zhao Yunxiang kept pressing the power button, but the mobile phone screen didn't light up at all.

The phone has been in the air for 10 days and looks broken.

"Don't worry about the phone...... Han Qianluo said with a wink, "Even if it is turned on, it is estimated that it will not receive a signal, and there is no signal tower installed here." ”

Indeed, on a deserted island, even if you have a mobile phone, it doesn't work, because there is no signal at all.

However, in addition to making calls, mobile phones have many uses, artifact!

What's more, you can also check the time on your phone!

I don't know the geometry of time here, and I completely lose the concept of time.

"Have you ever thought about the future?" asked Han Qianluo with a slight pout.

"No ......," Zhao Yunxiang responded indifferently.

"No, in my impression you are a very cautious person, haven't you thought about what will happen to us in the future?" asked Han Qianluo puzzled.

"No, fuck your sister?" Zhao Yunxiang complained.

"Xiu~!" Han Qianluo stretched out his thumb.

"I think we can do something meaningful!" Zhao Yunxiang said as he stared at Han Qianluo's exquisite side face.

"Hmm...... Listen to you~!" Han Qianluo nodded shyly, indicating that he could accept anything.

"Let's forge axes and swords and make pottery, right?" Zhao Yunxiang said excitedly.

A huge greeting slowly rose on Han Qianluo's face, "Shouldn't it be something meaningful?"

"Isn't this meaningless?" asked Zhao Yunxiang.

"Huh...... Listen to you!" 591.com

In this way, the two began to toss.

It is best to burn the kiln at night, because the air at this time is very refreshing, and the high temperature of the kiln does not have much effect on the man-made kiln.

The kiln has become very strong, after all, the yellow mud used to build the kiln is very viscous, especially the clay on the top of the chimney, which is basically reddish-brown in color, and it is a serious clay.

The formation of this natural clay is very complicated, as early as the Hemudu civilization, human beings know how to use this impurities, very viscous soil to make pottery.

"Do you have to make clay before firing pottery?" Although Han Qianluo didn't know the steps of making pottery, she could still awaken her memory if she had been exposed to TV or something.

Moreover, human beings, as advanced creatures with the most complete intellectual development, often think for themselves, so as to develop and perfect the production of certain advanced crafts.

The firewood in the mud stove was moved to the bottom of the kiln, and the firewood soon ignited a large amount of dry firewood, and the firewood contained a little moisture inside, and bursts of yellow-white smoke billowed out, and the kiln did not dry completely, making a sizzling sound under the burning of the flames.

"Zhao Yunxiang, look here!" Han Qianluo pointed to the outside of the kiln, where the yellow mud that had been pasted on it had fallen off, revealing a few stones in the inner wall of the kiln.

"It's normal!" Zhao Yunxiang said, "The kiln is made of yellow mud and stones, the stones are irregular, the viscosity of the yellow mud is poor, and the sand and gravel in the yellow mud will affect the kiln as a whole." ”

"Is this okay?" Han Qianluo was a little worried, afraid that the kiln would collapse.

"As long as you burn the kiln, you'll be fine. Zhao Yunxiang raised his eyebrows and said, "As early as thousands of years ago, our ancestors knew how to use flames to burn earth walls, which are very strong and waterproof against beasts. ”

Yes, things that are processed by flame will be qualitatively changed, such as meat will become cooked, wood with a certain oxygen content can be turned into charcoal, sand can be added to other things to become glass, and so on......

The kiln is now in the open air, and Zhao Yunxiang really doesn't have the energy to make a small shed to help the kiln cover the rain, and he can only do it in a few days.

However, the top priority is to make pottery, make some pottery bowls and jars, etc.

The kiln was successfully ignited, and there was a large space for ignition under the huge kiln, and there were hanging stove strips, and the slag after charcoal incineration would fall down the gap in the kiln.

With enough space, the sea breeze can also blow in, which will make the flame of the kiln burn more and more.

"What temperature do you say this kiln can burn?" Han Qianluo was more curious about this.

After all, pottery is fired, and if the temperature is not enough, then it is impossible to fire clay into pottery.

And the temperature required to fire the pottery...... Han Qianluo doesn't know!

However, Zhao Yunxiang knows!

"The temperature required for the formation of pottery is more than 800 degrees Celsius, and the temperature after wood is burned is about 700 degrees Celsius, and the temperature reached by different textures of wood varies. Zhao Yunxiang said briefly, "The function of the kiln is to gather temperature, which can make the temperature reach about 800~1000 degrees, and this temperature depends on the size of the flame blown by the sea breeze." ”

You must know that when a small fire is blown by the sea breeze, it will be extinguished in an instant, but when a large fire is blown by the sea breeze, it will form a sky-high fire, just like a blacksmith's bellows.

Of course, the intensity of the sea breeze is not comparable to that of the bellows!

The kiln is lit, the temperature inside is gradually rising, the kiln itself contains a lot of water, and now the heat is steaming excess water.

"We have to hurry up and make the mud blanks!" Zhao Yunxiang frowned and said with some concern, "It stands to reason that the mud blanks have to be made earlier, and then fired after drying, but it takes too long to dry in the shade, so let's give it a try." ”

The process and process of firing pottery are very complicated, for the clay, it is required to be delicate and free of impurities, and the mud blank should also be dried in the shade, and it must not be fired with water, so it is easy to have defective products.

Of course, at this time, the craftsmanship of the civilized world is required, after all, modern people pay more attention to the integrity and style of porcelain, and you will definitely not be able to sell a pottery bowl with a missing edge, but it is different on a desert island!